click below
click below
Normal Size Small Size show me how
Zoology - Porifera
Porifera
| Term | Definition |
|---|---|
| What does the word "porifera" mean? | Pore bearer |
| How do sponges feed? | Filter feeding - sponges filter water and remove nutrients to use for growth |
| What is the osculum? | The osculum is the opening at the top of the sponge where water exits. |
| What do ostia do? | Ostia are small holes on the sides of sponges where food and water enter. |
| Where are epithelial cells found on the sponge? | Epithelial cells are found on the outside of the sponge |
| What do choanocytes do? | Choanocytes trap nutrients and pull water into the sponge by moving their flagella |
| What do amoebocytes do? | Amoebocytes help move nutrients, reproduction, and making spicules. |
| What is the function of spicules? | Spicules form the hard support of the sponge and look like little spikes |
| What does spongin do? | Spongin helps form the support structure of the sponge and is more flexible than spicules |
| How do sponges reproduce? | Sexually or asexually |
| How are sponges able to reproduce asexually? | Gemules, regeneration, and budding |
| Sponges can make both sperm and egg cells so they are considered to be what? | Hermaphroditic |